At this point I'm starting to think I'll just forget about that part and start looking if there's something else to be improved. I'm still curious as to how it runs on other hardware, so if a couple of gents on Win boxes with something else than a 750 Ti in would be willing to take it for a spin, I'd appreciate it. I've added the number for SMX/SMM/Whateverthingmabobs into the miner thread start-up info, you'll probably find your card performing best when the block count is a multiple of the SMX count and the number of threads a power of 2. 4/8/16/32/64 are the best bets.
https://github.com/tsiv/ccminer-cryptonight/releases/download/v0.15-rc1/ccminer-cryptonight_20140723_exp.zipImproved hashrate of about 70H/s on a 780ti. Up from 320 to about 390 (using 8x60). Also doesn't seem to hang and bring the system to it's knees when using all GFX cards.
Seems to be in line with the ~18% improvements I saw when benchmarking only the AES part of the kernel. Have you tried other configs? 390 is still pretty low for a 780 Ti, I think people were getting best results with 4x120 on the 780 Ti.